normalizr.js

const normalizr = require('normalizr');

const job = new normalizr.schema.Entity('jobs');

// normalizing []
const result = normalizr.normalize([], job);
console.log(result);
console.log(result.entities.jobs);

// normalizing {}
const result1 = normalizr.normalize({}, job);
console.log(result1);

// normalizing undefined
// const result2 = normalizr.normalize(undefined, schema);

// normalizing null
// console.log(normalizr.normalize(null, schema));

// denormalize with non existing key
console.log(normalizr.denormalize([1], [job], { workers: {} }));